зеркало из https://github.com/mozilla/gecko-dev.git
271 строка
8.3 KiB
C++
271 строка
8.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Michiel van Leeuwen (mvl@exedo.nl)
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* Daniel Witte (dwitte@stanford.edu)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsPermissionManager_h__
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#define nsPermissionManager_h__
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#include "nsIPermissionManager.h"
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#include "nsIObserver.h"
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#include "nsIObserverService.h"
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#include "nsWeakReference.h"
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#include "nsCOMPtr.h"
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#include "nsIFile.h"
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#include "nsTHashtable.h"
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#include "nsTArray.h"
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#include "nsString.h"
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#include "nsPermission.h"
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class nsIPermission;
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class nsIIDNService;
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class mozIStorageConnection;
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class mozIStorageStatement;
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////////////////////////////////////////////////////////////////////////////////
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class nsPermissionEntry
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{
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public:
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nsPermissionEntry(PRUint32 aType, PRUint32 aPermission, PRInt64 aID,
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PRUint32 aExpireType, PRInt64 aExpireTime)
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: mType(aType)
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, mPermission(aPermission)
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, mID(aID)
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, mExpireType(aExpireType)
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, mExpireTime(aExpireTime) {}
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PRUint32 mType;
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PRUint32 mPermission;
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PRInt64 mID;
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PRUint32 mExpireType;
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PRInt64 mExpireTime;
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};
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class nsHostEntry : public PLDHashEntryHdr
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{
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public:
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// Hash methods
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typedef const char* KeyType;
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typedef const char* KeyTypePointer;
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nsHostEntry(const char* aHost);
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nsHostEntry(const nsHostEntry& toCopy);
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~nsHostEntry()
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{
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}
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KeyType GetKey() const
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{
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return mHost;
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}
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PRBool KeyEquals(KeyTypePointer aKey) const
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{
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return !strcmp(mHost, aKey);
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}
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static KeyTypePointer KeyToPointer(KeyType aKey)
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{
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return aKey;
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}
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static PLDHashNumber HashKey(KeyTypePointer aKey)
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{
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// PL_DHashStringKey doesn't use the table parameter, so we can safely
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// pass nsnull
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return PL_DHashStringKey(nsnull, aKey);
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}
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// force the hashtable to use the copy constructor when shuffling entries
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// around, otherwise the Auto part of our nsAutoTArray won't be happy!
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enum { ALLOW_MEMMOVE = PR_FALSE };
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// Permissions methods
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inline const nsDependentCString GetHost() const
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{
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return nsDependentCString(mHost);
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}
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inline nsTArray<nsPermissionEntry> & GetPermissions()
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{
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return mPermissions;
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}
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inline PRInt32 GetPermissionIndex(PRUint32 aType) const
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{
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for (PRUint32 i = 0; i < mPermissions.Length(); ++i)
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if (mPermissions[i].mType == aType)
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return i;
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return -1;
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}
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inline nsPermissionEntry GetPermission(PRUint32 aType) const
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{
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for (PRUint32 i = 0; i < mPermissions.Length(); ++i)
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if (mPermissions[i].mType == aType)
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return mPermissions[i];
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// unknown permission... return relevant data
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nsPermissionEntry unk = nsPermissionEntry(aType, nsIPermissionManager::UNKNOWN_ACTION,
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-1, nsIPermissionManager::EXPIRE_NEVER, 0);
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return unk;
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}
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private:
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const char *mHost;
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nsAutoTArray<nsPermissionEntry, 1> mPermissions;
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};
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class nsPermissionManager : public nsIPermissionManager,
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public nsIObserver,
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public nsSupportsWeakReference
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{
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public:
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// nsISupports
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NS_DECL_ISUPPORTS
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NS_DECL_NSIPERMISSIONMANAGER
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NS_DECL_NSIOBSERVER
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nsPermissionManager();
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virtual ~nsPermissionManager();
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static nsIPermissionManager* GetXPCOMSingleton();
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static already_AddRefed<nsPermissionManager> GetSingleton();
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nsresult Init();
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// enums for AddInternal()
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enum OperationType {
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eOperationNone,
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eOperationAdding,
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eOperationRemoving,
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eOperationChanging
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};
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enum DBOperationType {
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eNoDBOperation,
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eWriteToDB
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};
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enum NotifyOperationType {
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eDontNotify,
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eNotify
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};
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nsresult AddInternal(const nsAFlatCString &aHost,
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const nsAFlatCString &aType,
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PRUint32 aPermission,
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PRInt64 aID,
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PRUint32 aExpireType,
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PRInt64 aExpireTime,
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NotifyOperationType aNotifyOperation,
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DBOperationType aDBOperation);
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private:
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PRInt32 GetTypeIndex(const char *aTypeString,
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PRBool aAdd);
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nsHostEntry *GetHostEntry(const nsAFlatCString &aHost,
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PRUint32 aType,
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PRBool aExactHostMatch);
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nsresult CommonTestPermission(nsIURI *aURI,
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const char *aType,
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PRUint32 *aPermission,
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PRBool aExactHostMatch);
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nsresult InitDB(PRBool aRemoveFile);
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nsresult CreateTable();
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nsresult Import();
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nsresult Read();
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void NotifyObserversWithPermission(const nsACString &aHost,
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const nsCString &aType,
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PRUint32 aPermission,
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PRUint32 aExpireType,
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PRInt64 aExpireTime,
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const PRUnichar *aData);
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void NotifyObservers(nsIPermission *aPermission, const PRUnichar *aData);
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nsresult RemoveAllInternal();
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nsresult RemoveAllFromMemory();
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nsresult NormalizeToACE(nsCString &aHost);
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nsresult GetHost(nsIURI *aURI, nsACString &aResult);
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static void UpdateDB(OperationType aOp,
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mozIStorageStatement* aStmt,
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PRInt64 aID,
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const nsACString &aHost,
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const nsACString &aType,
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PRUint32 aPermission,
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PRUint32 aExpireType,
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PRInt64 aExpireTime);
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nsCOMPtr<nsIObserverService> mObserverService;
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nsCOMPtr<nsIIDNService> mIDNService;
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nsCOMPtr<mozIStorageConnection> mDBConn;
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nsCOMPtr<mozIStorageStatement> mStmtInsert;
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nsCOMPtr<mozIStorageStatement> mStmtDelete;
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nsCOMPtr<mozIStorageStatement> mStmtUpdate;
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nsTHashtable<nsHostEntry> mHostTable;
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// a unique, monotonically increasing id used to identify each database entry
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PRInt64 mLargestID;
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// An array to store the strings identifying the different types.
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nsTArray<nsCString> mTypeArray;
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// Whether we should update the child process with every change to a
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// permission. This is set to true once the child is ready to receive
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// such updates.
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PRBool mUpdateChildProcess;
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public:
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void ChildRequestPermissions()
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{
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mUpdateChildProcess = PR_TRUE;
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}
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};
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// {4F6B5E00-0C36-11d5-A535-0010A401EB10}
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#define NS_PERMISSIONMANAGER_CID \
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{ 0x4f6b5e00, 0xc36, 0x11d5, { 0xa5, 0x35, 0x0, 0x10, 0xa4, 0x1, 0xeb, 0x10 } }
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#endif /* nsPermissionManager_h__ */
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